Re: Userspace testsuite issues

Thanks for you determination in framing it. Even if I lost a few hours 
already, you saved my time and bad feelings, for being unable to track 
it down something that have worked for a long time.
I'll have a look at your configs ASAP.
Paolo.

On 01/11/2016 10:44 AM, Emmanuel Pacaud wrote:
> Hi,
>
> Le jeu. 7 janv. 2016 à 10:27, Emmanuel Pacaud 
> <[email protected]> a écrit :
>> Hi,
>>
>> Le jeu. 7 janv. 2016 à 9:06, Paolo Mantegazza
>> <[email protected]> a écrit :
>> > On 01/06/2016 07:24 PM, Emmanuel Pacaud wrote:
>> >> Le lun. 14 déc. 2015 à 18:42, Paolo Mantegazza
>> >> <[email protected]> a écrit :
>> >>> At the moment I've no idea.
>> >>> Just configure you latency dat by hand, e.g. 4000, 0,0 and go on.
>> >>> Run the latency test and adjust for a better figure, as it should
>> >>> have been done before.
>> >>
>> >> I have done that, but it doesn't help in making testsuite pass.
>> >>
>> >> I have tried to debug things a little, and found the problem is in
>> >> the rt_make_hard_realtime call.
>> >>
>> > That's interesting, you found a possible bug in something that has
>> > worked without problems for decades.
>> > So, my problem is now to understand what's going wrong in your
>> > environment. Not a simple task as I cannot reproduce it on any of the
>> > four machines(from P III to dual core I5, + an old OPTERON) I've
>> > available.
>>
>> Debugging further, it's the call to __ipipe_migrate_head in
>> steal_from_linux that doesn't return.
>
> I have recompiled the linux kernel, removing the configuration I have 
> been using, replaced by the default kernel configuration.
>
> Now the testsuite pass, so it seems a linux kernel configuration issue.
>
> I'm going to try to find what kernel feature conflicts with rtai. I 
> have attached the non-working and working linux kernel configuration. 
> Do you have a suggestion on where to look first ?
>
> Thanks.
>
>     Cheers,
>
>         Emmanuel.

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